Nestiyarum, Yuli, and Endang Widjajanti. “Differentiated Project Based Learning to Improve Collaboration Skills and Cognitive Learning Outcomes of High School Students on Colloidal System Material ”. Jurnal Penelitian Pendidikan IPA 9, no. 12 (December 20, 2023): 11441–11447. Accessed December 27, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/4867.